I had an unusual occurrence. I was set to win a space race and cultural victories on the same turn. I didn't know how it would play out, but shot tells it well enough. The culture win canceled the space mission.

A further clarification. Clicking ok, did switch to saying that the space mission failed. At the time I snapped this, it was the first screen shot I'd ever captured. I had thought that the culture fail and win at the same time was the funny one. In retrospect I should've saved the next screen as well. I'm also for seeing how many different wins can be pulled out of the same game. I have had culture, space and diplomatic within just a few turns of each other. I'd love to see how the more warlike players handle it.

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The entire British Empire was built on tiny cups of tea, and I'm not going to war without one.

I usually play at monarch difficulty, but a while back I played a game at chieftain just to see how rediculous it would be. Planned on going space as early as I could. Got pretty boring in the modern era when the AI was still in medival times so decided to take over the rest of my continent for the fun of it. Since I founded 5 religons and literally built ever wonder in the game except 2 shrines I had culture coming out my ears. So I got the idea of domination, space and culture wins on the same turn.

I ended up accidentally going over the domination limit while waiting for culture. But, I think with a little better management on my part those 3 victories would certainly be possible. Any more than 3 victories in one turn would be tough since AP/UN and domination/conquest would be next to impossible to achieve at the same time.